R32替代R22在泵驱动回路热管自然冷却系统中的应用
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摘要
为研究R32替代R22用于泵驱动回路热管的换热特性,搭建了泵驱动回路热管系统的实验机组,围绕2种工质在不同室内外温差和不同工质流量下换热量和能效比(energy efficiency ratio,EER)的变化情况展开实验,研究对比了二者的性能优劣.结果表明:在全部实验工况下,泵驱动回路热管使用R32时的换热量和EER都高于R22,进行节能性分析发现,R32在启动温度、可运行时间和平均EER上都要全面超越R22,节能性更好.但与此同时,R32机组又存在室外温度较高时工质泵低频供液不足、液体断流的问题.
To investigate the heat transfer characteristics of the pump-driven loop heat pipe using R32 to replace R22,an experimental unit of pump-driven loop heat pipe system was built to study the variation of cooling capacity and energy efficiency ratio( EER) of the system by using two refrigerants under different indoor and outdoor temperature differences and different mass flow rates of refrigerants. The performances of different refrigerants were analyzed and compared. Results show that the cooling capacity and EER of R32 unit is higher than that of R22 unit under all experimental conditions,and according to the energy-saving analysis,the starting temperature,running time and average EER of the unit using different refrigerants were contrasted,showing that R32 has the advantages over R22 on energy saving.Meanwhile,R32 unit has the problem of insufficient feed liquid when pump frequencies are low under outdoor high temperature.
To investigate the heat transfer characteristics of the pump-driven loop heat pipe using R32 to replace R22,an experimental unit of pump-driven loop heat pipe system was built to study the variation of cooling capacity and energy efficiency ratio( EER) of the system by using two refrigerants under different indoor and outdoor temperature differences and different mass flow rates of refrigerants. The performances of different refrigerants were analyzed and compared. Results show that the cooling capacity and EER of R32 unit is higher than that of R22 unit under all experimental conditions,and according to the energy-saving analysis,the starting temperature,running time and average EER of the unit using different refrigerants were contrasted,showing that R32 has the advantages over R22 on energy saving.Meanwhile,R32 unit has the problem of insufficient feed liquid when pump frequencies are low under outdoor high temperature.
引文
[1]CHO J,KIM B S.Evaluation of air management system's thermal performance for superior cooling efficiency in high density data centers[J].Energy and Buildings,2011,43(9):2145-2155.
[2]GREENBERG S,MILLS E,TSCHUDI B,et al.Best practices for datacenters:lessons learned from benchmarking 22 data centers[C]∥Proceedings of the ACEEE Summer Study on Energy Efficiency in Buildings.Asilomar:ACEEE,2006:76-87.
[3]皮立华,李文杰,刘丽.云化数据中心的节能减排探讨[J].移动通信,2012,36(13):52-56.PI L H,LI W J,LIU L.Discussion of energy conservation and emission reduction of clouded data center[J].Mobile Communications,2012,36(13):52-56.(in Chinese)
[4]张海南,邵双全,田长青.数据中心自然冷却技术研究进展[J].制冷学报.2016,37(4):46-57.ZHANG H N,SHAO S Q,TIAN C Q.Research advances in free cooling technology of data centers[J].Journal of Refrigeration,2016,37(4):46-57.(in Chinese)
[5]周峰,田昕,马国远.IDC机房用热管换热器节能特性实验研究[J].土木建筑与环境工程,2011,33(1):111-117.ZHOU F,TIAN X,MA G Y.Energy-saving performance of thermosyphon heat exchanger applied in internet data center[J].Journal of Civil,Architectural&Environmental Engineering,2011,33(1):111-117.(in Chinese)
[6]ZHOU F,TIAN X,MA G Y.Investigation into the energy consumption of a data center with a thermosiphon heat exchanger[J].Chinese Sci Bull,2011,56(20):2185-2190.
[7]田浩,李震,刘晓华,等.信息机房热管空调系统应用研究[J].建筑科学,2010,26(10):141-145.TIAN H,LI Z,LIU X H,et al.Applied research for data center heat pipe air conditioning system[J].Building Science,2010,26(10):141-145.(in Chinese)
[8]田浩,李震.基于环路热管技术的数据中心分布式冷却方案及其应用[J].世界电信,2011(10):48-52.TIAN H,LI Z.Distributed cooling scheme and application for data centers based on loop heat pipe technology[J].World Telecommunications,2011(10):48-52.(in Chinese)
[9]QIAN X,LI Z,TIAN H.Application of heat pipe system in data center cooling[M]∥Progress in Sustainable Energy Technologies Vol II.[S.l.]:Springer International Publishing,2014:609-620.
[10]张双,马国远,周峰,等.数据机房自然冷却用泵驱动回路热管换热机组性能实验研究[J].土木建筑与环境工程,2013,35(4):145-150.ZHANG S,MA G Y,ZHOU F,et al.Experimental analysis on function of free cooling unit with a pumpdriven loop heat pipe for internet data center[J].Journal of Civil,Architectural&Environmental Engineering,2013,35(4):145-150.(in Chinese)
[11]ZHANG S,MA G Y,ZHOU F.Experimental study on a pump driven loop-heat pipe for data center cooling[J].Journal of Energy Engineering,2015,141(4):04014054.
[12]马国远,魏川铖,张双,等.某小型数据中心散热用泵驱动回路热管换热机组的应用研究[J].北京工业大学学报,2015,41(3):439-445.MA G Y,WEI C C,ZHANG S,et al.Application of a pumped loop heat pipe heat exchanger unit for a small data center[J].Journal of Beijing University of Technology,2015,41(3):439-445.(in Chinese)
[13]姚远.应用于空调的重力型分离式热管换热器的设计和实验研究[D].广州:华南理工大学,2010.YAO Y.Design and experimental investigation of heat transferring capacity of gravitational separate type which applied to air-condition[D].Guangzhou:South China University of Technology,2010.(in Chinese)
[14]金鑫,瞿晓华,祁照岗,等.微通道型分离式热管传热性能实验研究[J].制冷学报,2011,32(3):15-19.JIN X,QU X H,QI Z G,et al.Experimental investigation on heat transfer of microchannel separate heat pipe[J].Journal of Refrigeration,2011,32(3):15-19.(in Chinese)
[15]TONG Z,DING T,LI Z,et al.An experimental investigation of an R744 two-phase thermosyphon loop used to cool a data center[J].Applied Thermal Engineering,2015,90:362-365.
[16]费业泰.误差理论与数据处理[M].北京:机械工业出版社,2010:82-86.
[17]国家质检总局.房间空气调节器能效限定值及能效等级:GB 12021.3-2010[S].北京:中国标准出版社,2010:4.
[2]GREENBERG S,MILLS E,TSCHUDI B,et al.Best practices for datacenters:lessons learned from benchmarking 22 data centers[C]∥Proceedings of the ACEEE Summer Study on Energy Efficiency in Buildings.Asilomar:ACEEE,2006:76-87.
[3]皮立华,李文杰,刘丽.云化数据中心的节能减排探讨[J].移动通信,2012,36(13):52-56.PI L H,LI W J,LIU L.Discussion of energy conservation and emission reduction of clouded data center[J].Mobile Communications,2012,36(13):52-56.(in Chinese)
[4]张海南,邵双全,田长青.数据中心自然冷却技术研究进展[J].制冷学报.2016,37(4):46-57.ZHANG H N,SHAO S Q,TIAN C Q.Research advances in free cooling technology of data centers[J].Journal of Refrigeration,2016,37(4):46-57.(in Chinese)
[5]周峰,田昕,马国远.IDC机房用热管换热器节能特性实验研究[J].土木建筑与环境工程,2011,33(1):111-117.ZHOU F,TIAN X,MA G Y.Energy-saving performance of thermosyphon heat exchanger applied in internet data center[J].Journal of Civil,Architectural&Environmental Engineering,2011,33(1):111-117.(in Chinese)
[6]ZHOU F,TIAN X,MA G Y.Investigation into the energy consumption of a data center with a thermosiphon heat exchanger[J].Chinese Sci Bull,2011,56(20):2185-2190.
[7]田浩,李震,刘晓华,等.信息机房热管空调系统应用研究[J].建筑科学,2010,26(10):141-145.TIAN H,LI Z,LIU X H,et al.Applied research for data center heat pipe air conditioning system[J].Building Science,2010,26(10):141-145.(in Chinese)
[8]田浩,李震.基于环路热管技术的数据中心分布式冷却方案及其应用[J].世界电信,2011(10):48-52.TIAN H,LI Z.Distributed cooling scheme and application for data centers based on loop heat pipe technology[J].World Telecommunications,2011(10):48-52.(in Chinese)
[9]QIAN X,LI Z,TIAN H.Application of heat pipe system in data center cooling[M]∥Progress in Sustainable Energy Technologies Vol II.[S.l.]:Springer International Publishing,2014:609-620.
[10]张双,马国远,周峰,等.数据机房自然冷却用泵驱动回路热管换热机组性能实验研究[J].土木建筑与环境工程,2013,35(4):145-150.ZHANG S,MA G Y,ZHOU F,et al.Experimental analysis on function of free cooling unit with a pumpdriven loop heat pipe for internet data center[J].Journal of Civil,Architectural&Environmental Engineering,2013,35(4):145-150.(in Chinese)
[11]ZHANG S,MA G Y,ZHOU F.Experimental study on a pump driven loop-heat pipe for data center cooling[J].Journal of Energy Engineering,2015,141(4):04014054.
[12]马国远,魏川铖,张双,等.某小型数据中心散热用泵驱动回路热管换热机组的应用研究[J].北京工业大学学报,2015,41(3):439-445.MA G Y,WEI C C,ZHANG S,et al.Application of a pumped loop heat pipe heat exchanger unit for a small data center[J].Journal of Beijing University of Technology,2015,41(3):439-445.(in Chinese)
[13]姚远.应用于空调的重力型分离式热管换热器的设计和实验研究[D].广州:华南理工大学,2010.YAO Y.Design and experimental investigation of heat transferring capacity of gravitational separate type which applied to air-condition[D].Guangzhou:South China University of Technology,2010.(in Chinese)
[14]金鑫,瞿晓华,祁照岗,等.微通道型分离式热管传热性能实验研究[J].制冷学报,2011,32(3):15-19.JIN X,QU X H,QI Z G,et al.Experimental investigation on heat transfer of microchannel separate heat pipe[J].Journal of Refrigeration,2011,32(3):15-19.(in Chinese)
[15]TONG Z,DING T,LI Z,et al.An experimental investigation of an R744 two-phase thermosyphon loop used to cool a data center[J].Applied Thermal Engineering,2015,90:362-365.
[16]费业泰.误差理论与数据处理[M].北京:机械工业出版社,2010:82-86.
[17]国家质检总局.房间空气调节器能效限定值及能效等级:GB 12021.3-2010[S].北京:中国标准出版社,2010:4.
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